melanosis(n = noun.state) melanism - a condition characterized by abnormal deposits of melanin (especially in the skin);
is a kind of disease of the skin, skin disease, skin disorder
The morbid deposition of black matter, often of a malignant character, causing pigmented tumors. [1913 Webster]
melanosis, n.
1 = MELANISM.
2 a disorder in the body's production of melanin.
Derivative:
melanotic adj.
Etymology:
mod.L f. Gk (as MELANIN)